I couldn't help _____ when I heard the joke.
| A．being laughed | B．laughing | C．to be laughing | D．to laugh |
Martin Luther King Jr．was _____ the Noble Peace Prize of 1964 for advocating nonviolence policy in the movement for civil rights．
| A．awarded | B．offered | C．rewarded | D．received |
The income of skilled workers went up．______, unskilled workers saw their earnings fall．
| A．Moreover | B．Therefore | C．Meanwhile | D．Otherwise |
I’m sure that your letter will get ______ attention．They know you’re waiting for the reply．
| A．continued | B．immediate | C．careful | D．general |
It seems that living green is _____ easy and affordable．A small step makes a big difference．
| A．exactly | B．fortunately | C．surprisingly | D．hardly |
My uncle’s house in the downtown area is much smaller than ours, but it is twice ____ expensive．
| A．as | B．so | C．too | D．very |